Tangit FP 450 Fire Protection Mastic

Features and Benefits

  • For use to seal openings, gaps, joints and gussets in fire protection systems.
  • The Tangit FP 450  fire protection compound can also be used in accordance with the MLAR model wiring system guideline of 10.02.2015 to close openings in room-enclosing building components (walls and ceilings) through which the following cables are routed:
  •  Electrical cables, e.g. power cables, telephone cables, EDP cables, fibre optic cables.
  • Combustible pipelines, e.g. PB, PE, PVC, composite pipes as well as empty pipes for electrical lines up to a maximum outer pipe diameter of 32 mm.
  • Non-combustible pipelines, e.g. copper, steel and cast iron up to a maximum outer pipe diameter of 160 mm.

Product Advantages

  • Compound foaming in case of fire (intumescence) 
  • Complies with DIN 4102-B1 and MLAR ("Musterleitunmgsanlagenrichtlinie").
  • Provides a minimum of 90 minutes fire protection.
  • Fast and easy application.
  • Free of plasticizers, solvents and halogens. 
  • Expansion factor in case of fire 7 13
  • Air permeability: no air passage up to pressure difference 600 Pa 
  • VOC emission class A+ (Decree France 2011-321)


Packaging Details:

  • 310ml Cartridge



  • Compound foaming in case of fire (intumescence) for the fireproof sealing of electrical cables, telecommunications cables and optical fiber cables.


  1. The substrate must be clean and dust-free.

  2. Completely fill the cavities between the cable strands with Tangit FP 450 in the entire wall thickness

  3. Lay a strand of approx. 5 mm around the cables.